Aldol condensation is a reaction involving the enolate ion of an aldehyde or a ketone with a carbonyl compound to form a β-hydroxy aldehyde or β-hydroxy ketone followed by dehydration to give a conjugated enone. For a compound to undergo Aldol condensation, it must possess α-hydrogen atoms. Let's analyze the options:
Compound (A): It has α-hydrogens, thus capable of forming an enolate ion and can undergo Aldol condensation.
Compound (B): Lacks α-hydrogens, thus cannot form an enolate ion, meaning it can't participate in Aldol condensation.
Compound (C): Contains α-hydrogens, so it can form an enolate ion and undergo Aldol condensation.
Compound (D): Also has α-hydrogens, enabling it to undergo Aldol condensation.
Therefore, the compounds that can undergo Aldol condensation are (A), (C), and (D).
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The Aldol condensation is a reaction where an enolate ion reacts with a carbonyl compound to form a β-hydroxy ketone, followed by dehydration to give a conjugated enone. For a compound to undergo Aldol condensation, it must have at least one α-hydrogen atom. Let's analyze the compounds presented in the options:
Compound
Presence of α-Hydrogen
(A)
Yes
(B)
No
(C)
Yes
(D)
Yes
From the table, only compounds (A), (C), and (D) contain α-hydrogens, making them capable of undergoing Aldol condensation.
Therefore, the correct answer is: (A), (C) and (D) only
